Description
Magnitude Lighting M-Series 40W LED Driver — 12V DC
M40L12DC-AR is a 40W Magnitude Lighting Constant Voltage LED Driver with 120V input and a 12V DC output for low-voltage LED lighting systems. It is phase dimmable using a leading (forward) edge MLV TRIAC dimmer and is rated Class 2. The coated metal enclosure includes an Integrated Junction Box with multiple 7/8 in. knockouts for streamlined installation.
Key Features
- Power: 40W max load
- Input Voltage: 120VAC ± 5%, 50/60Hz
- Output Voltage: 12VDC
- Driver Type: Constant Voltage (magnetic)
- Dimming: Phase dimmable with leading (forward) edge MLV TRIAC dimmer only; minimum dimming level 1%
- Dimensions: 5.60 in. L x 2.00 in. W x 2.14 in. H
- Enclosure Type: Integrated Junction Box; coated metal housing; multiple 7/8 in. knockouts; 2-hole flange mount
- IP Rating: NEMA 3R
- Class 2: Yes
- Certifications: ETL Listed; conforms to UL STD 2108; C22.2 No. 223
Physical Design & Installation
Built in a coated metal enclosure with an Integrated Junction Box and multiple 7/8 in. knockouts to simplify line-voltage and low-voltage wiring transitions. The driver uses a 2-hole flange mount and specifies 5 in. minimum installation spacing for ventilation.
Dimming & Controls
Phase dimming is supported with a leading (forward) edge MLV TRIAC dimmer only. Dimming performance is specified down to a 1% minimum dimming level. Input is 120VAC, 50/60Hz and output is 12VDC constant voltage for compatible LED loads.
Performance & Build
Protection is provided by primary and secondary auto-reset circuit breakers to help safeguard both the driver and connected LED load. The unit is Class 2 and is ETL Listed (conforms to UL 2108 and C22.2 No. 223). Environmental ratings include Dry & Damp and NEMA 3R.
Typical Applications
- 12VDC LED tape and under-cabinet lighting
- Linear and tube-style low-voltage LED systems
- Residential and commercial accent lighting runs
- Damp-location installations requiring a NEMA 3R enclosure






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